document.write( "Question 463747: I would like to figure out how to mix pesticide at various concentrations for my garden. The chemical concentration is 10%. If I mix x amount in one gallon, what will my concentration be? ex: 1 oz of concentrate, in one gallon (128 oz)= what percentage of pesticide? I would like the formula for figuring this problem out please. Thanks for your help. I used to be pretty good with math, but it's been so long since high school. \n" ); document.write( "
Algebra.Com's Answer #318594 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! 1 oz. of concentrate mixed with 128 oz. of water is 1/129 or .78%--To get 10% you \n" ); document.write( "need: \n" ); document.write( ".10(128+x)=x \n" ); document.write( "12.8+.1x=x \n" ); document.write( "12.8=.9x \n" ); document.write( "x=12.8/.9=14.22 oz. of pesticide necessary.. \n" ); document.write( " |